my marble cannon has a 5 foot long, 1/2 inch copper barrel. it can, like i said, hit a large target from 150 feet no problem.

if i were you, i would buy yourself like 5 feet of PVC, and then just cut it down to what looks good......... to be honest, a longer inner barrel doesnt do much for accuracy, it just adds to power and efficiency.

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Ill Probs go 80-90cm long i wantit to be portable,and with the stock attached, i dont want it to be taller then me (145cm) ill sort my barrel out once ove got everything else srted, ill make it so it looks like a good size in comprassion to the rest of the gun. But With GGDT or w/e that program is called what wuld i get with 80cm barrel, and 30cm chamber?

Hey all thanks for the comments and all, cant wait to buy the rest of my parts, i've come up with my loading idea, thanks to mr.russ, well e prob got it of someone else i dont know it will just simply be shell loading (hense the shell holding thing i made on my stock), the shell will connect to couplers to join to either side of the shell. Im most likely having the chamber 20cm barrel approx 80cm.

Many thanks, Thursto.

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Last edited by Thursto on Sat Oct 06, 2007 5:23 am, edited 1 time in total.